./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1032d_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_7493c52f-4c72-47af-a679-d1d77f4ffc44/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7493c52f-4c72-47af-a679-d1d77f4ffc44/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7493c52f-4c72-47af-a679-d1d77f4ffc44/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7493c52f-4c72-47af-a679-d1d77f4ffc44/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032d_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7493c52f-4c72-47af-a679-d1d77f4ffc44/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7493c52f-4c72-47af-a679-d1d77f4ffc44/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 55e25fd47a6133e138b684ec17fad2c015ceccf7 ......................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_7493c52f-4c72-47af-a679-d1d77f4ffc44/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7493c52f-4c72-47af-a679-d1d77f4ffc44/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7493c52f-4c72-47af-a679-d1d77f4ffc44/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7493c52f-4c72-47af-a679-d1d77f4ffc44/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032d_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7493c52f-4c72-47af-a679-d1d77f4ffc44/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7493c52f-4c72-47af-a679-d1d77f4ffc44/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 55e25fd47a6133e138b684ec17fad2c015ceccf7 ............................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 23:59:08,560 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 23:59:08,561 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 23:59:08,567 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 23:59:08,567 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 23:59:08,568 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 23:59:08,569 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 23:59:08,570 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 23:59:08,570 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 23:59:08,571 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 23:59:08,571 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 23:59:08,571 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 23:59:08,572 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 23:59:08,572 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 23:59:08,573 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 23:59:08,573 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 23:59:08,574 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 23:59:08,575 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 23:59:08,576 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 23:59:08,577 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 23:59:08,577 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 23:59:08,578 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 23:59:08,579 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 23:59:08,579 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 23:59:08,579 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 23:59:08,580 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 23:59:08,580 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 23:59:08,581 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 23:59:08,581 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 23:59:08,581 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 23:59:08,582 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 23:59:08,582 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 23:59:08,582 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 23:59:08,582 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 23:59:08,583 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 23:59:08,583 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 23:59:08,583 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7493c52f-4c72-47af-a679-d1d77f4ffc44/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-08 23:59:08,590 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 23:59:08,591 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 23:59:08,591 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 23:59:08,591 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 23:59:08,591 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 23:59:08,591 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 23:59:08,591 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 23:59:08,592 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 23:59:08,592 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 23:59:08,592 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 23:59:08,592 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 23:59:08,592 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 23:59:08,592 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 23:59:08,592 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 23:59:08,593 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 23:59:08,593 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 23:59:08,593 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 23:59:08,593 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 23:59:08,593 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 23:59:08,593 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 23:59:08,593 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 23:59:08,593 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 23:59:08,593 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 23:59:08,593 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 23:59:08,593 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 23:59:08,594 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 23:59:08,594 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 23:59:08,594 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 23:59:08,594 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 23:59:08,594 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 23:59:08,594 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 23:59:08,594 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 23:59:08,594 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 23:59:08,594 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 23:59:08,594 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 23:59:08,594 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 23:59:08,594 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_7493c52f-4c72-47af-a679-d1d77f4ffc44/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55e25fd47a6133e138b684ec17fad2c015ceccf7 [2018-12-08 23:59:08,612 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 23:59:08,618 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 23:59:08,620 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 23:59:08,621 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 23:59:08,621 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 23:59:08,622 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7493c52f-4c72-47af-a679-d1d77f4ffc44/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1032d_true-unreach-call.c [2018-12-08 23:59:08,657 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7493c52f-4c72-47af-a679-d1d77f4ffc44/bin-2019/utaipan/data/9cda512c6/6603d1139b9a47d5b894ed8b924dd348/FLAG6efe9bdc3 [2018-12-08 23:59:09,074 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 23:59:09,075 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7493c52f-4c72-47af-a679-d1d77f4ffc44/sv-benchmarks/c/float-newlib/float_req_bl_1032d_true-unreach-call.c [2018-12-08 23:59:09,078 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7493c52f-4c72-47af-a679-d1d77f4ffc44/bin-2019/utaipan/data/9cda512c6/6603d1139b9a47d5b894ed8b924dd348/FLAG6efe9bdc3 [2018-12-08 23:59:09,086 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7493c52f-4c72-47af-a679-d1d77f4ffc44/bin-2019/utaipan/data/9cda512c6/6603d1139b9a47d5b894ed8b924dd348 [2018-12-08 23:59:09,088 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 23:59:09,088 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 23:59:09,089 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 23:59:09,089 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 23:59:09,091 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 23:59:09,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:59:09" (1/1) ... [2018-12-08 23:59:09,093 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70b0ea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:59:09, skipping insertion in model container [2018-12-08 23:59:09,093 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:59:09" (1/1) ... [2018-12-08 23:59:09,097 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 23:59:09,107 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 23:59:09,198 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 23:59:09,200 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 23:59:09,214 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 23:59:09,226 INFO L195 MainTranslator]: Completed translation [2018-12-08 23:59:09,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:59:09 WrapperNode [2018-12-08 23:59:09,226 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 23:59:09,226 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 23:59:09,227 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 23:59:09,227 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 23:59:09,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:59:09" (1/1) ... [2018-12-08 23:59:09,237 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:59:09" (1/1) ... [2018-12-08 23:59:09,241 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 23:59:09,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 23:59:09,241 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 23:59:09,241 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 23:59:09,276 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:59:09" (1/1) ... [2018-12-08 23:59:09,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:59:09" (1/1) ... [2018-12-08 23:59:09,278 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:59:09" (1/1) ... [2018-12-08 23:59:09,278 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:59:09" (1/1) ... [2018-12-08 23:59:09,284 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:59:09" (1/1) ... [2018-12-08 23:59:09,287 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:59:09" (1/1) ... [2018-12-08 23:59:09,288 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:59:09" (1/1) ... [2018-12-08 23:59:09,289 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 23:59:09,290 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 23:59:09,290 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 23:59:09,290 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 23:59:09,290 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:59:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7493c52f-4c72-47af-a679-d1d77f4ffc44/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 23:59:09,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-08 23:59:09,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 23:59:09,320 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-12-08 23:59:09,321 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-12-08 23:59:09,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 23:59:09,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 23:59:09,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-08 23:59:09,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 23:59:09,321 INFO L130 BoogieDeclarations]: Found specification of procedure round_float [2018-12-08 23:59:09,321 INFO L138 BoogieDeclarations]: Found implementation of procedure round_float [2018-12-08 23:59:09,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 23:59:09,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 23:59:09,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 23:59:09,321 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 23:59:09,321 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 23:59:09,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 23:59:09,458 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 23:59:09,459 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-08 23:59:09,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:59:09 BoogieIcfgContainer [2018-12-08 23:59:09,459 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 23:59:09,460 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 23:59:09,460 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 23:59:09,462 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 23:59:09,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 11:59:09" (1/3) ... [2018-12-08 23:59:09,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@797e1d6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 11:59:09, skipping insertion in model container [2018-12-08 23:59:09,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:59:09" (2/3) ... [2018-12-08 23:59:09,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@797e1d6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 11:59:09, skipping insertion in model container [2018-12-08 23:59:09,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:59:09" (3/3) ... [2018-12-08 23:59:09,466 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032d_true-unreach-call.c [2018-12-08 23:59:09,474 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 23:59:09,479 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 23:59:09,489 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 23:59:09,509 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 23:59:09,509 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 23:59:09,509 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 23:59:09,509 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 23:59:09,509 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 23:59:09,509 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 23:59:09,509 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 23:59:09,510 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 23:59:09,520 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-12-08 23:59:09,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-08 23:59:09,524 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:59:09,525 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:59:09,527 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:59:09,531 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:59:09,531 INFO L82 PathProgramCache]: Analyzing trace with hash 636729620, now seen corresponding path program 1 times [2018-12-08 23:59:09,533 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:59:09,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:59:09,567 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:59:09,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:59:09,567 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:59:09,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:59:09,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:59:09,622 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:59:09,622 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 23:59:09,622 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:59:09,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 23:59:09,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 23:59:09,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 23:59:09,634 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2018-12-08 23:59:09,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:59:09,647 INFO L93 Difference]: Finished difference Result 66 states and 89 transitions. [2018-12-08 23:59:09,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 23:59:09,648 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-12-08 23:59:09,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:59:09,653 INFO L225 Difference]: With dead ends: 66 [2018-12-08 23:59:09,653 INFO L226 Difference]: Without dead ends: 33 [2018-12-08 23:59:09,655 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 23:59:09,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-12-08 23:59:09,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-12-08 23:59:09,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-12-08 23:59:09,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2018-12-08 23:59:09,678 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 24 [2018-12-08 23:59:09,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:59:09,678 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2018-12-08 23:59:09,678 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 23:59:09,678 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2018-12-08 23:59:09,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-08 23:59:09,678 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:59:09,679 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:59:09,679 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:59:09,679 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:59:09,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1180797057, now seen corresponding path program 1 times [2018-12-08 23:59:09,679 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:59:09,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:59:09,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:59:09,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:59:09,680 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:59:09,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:59:09,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:59:09,744 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 23:59:09,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 11:59:09 BoogieIcfgContainer [2018-12-08 23:59:09,761 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 23:59:09,762 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 23:59:09,762 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 23:59:09,762 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 23:59:09,762 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:59:09" (3/4) ... [2018-12-08 23:59:09,765 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 23:59:09,765 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 23:59:09,765 INFO L168 Benchmark]: Toolchain (without parser) took 677.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 957.8 MB in the beginning and 1.1 GB in the end (delta: -101.8 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2018-12-08 23:59:09,766 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:59:09,767 INFO L168 Benchmark]: CACSL2BoogieTranslator took 137.14 ms. Allocated memory is still 1.0 GB. Free memory was 957.8 MB in the beginning and 945.9 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-12-08 23:59:09,767 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.46 ms. Allocated memory is still 1.0 GB. Free memory was 945.9 MB in the beginning and 940.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-08 23:59:09,767 INFO L168 Benchmark]: Boogie Preprocessor took 48.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -174.8 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-12-08 23:59:09,768 INFO L168 Benchmark]: RCFGBuilder took 169.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2018-12-08 23:59:09,769 INFO L168 Benchmark]: TraceAbstraction took 301.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.5 MB). Peak memory consumption was 37.5 MB. Max. memory is 11.5 GB. [2018-12-08 23:59:09,769 INFO L168 Benchmark]: Witness Printer took 3.33 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:59:09,771 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 137.14 ms. Allocated memory is still 1.0 GB. Free memory was 957.8 MB in the beginning and 945.9 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 14.46 ms. Allocated memory is still 1.0 GB. Free memory was 945.9 MB in the beginning and 940.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 48.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -174.8 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 169.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 301.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.5 MB). Peak memory consumption was 37.5 MB. Max. memory is 11.5 GB. * Witness Printer took 3.33 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 78]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 42, overapproximation of bitwiseAnd at line 62. Possible FailurePath: [L73] float x = -1.0f / 0.0f; [L74] CALL, EXPR round_float(x) VAL [\old(x)=6442450951] [L12] __uint32_t w; [L14] int exponent_less_127; VAL [\old(x)=6442450951, x=6442450951] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (w) = gf_u.word [L22] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=6442450951, exponent_less_127=128, w=2147483652, x=6442450951] [L24] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=6442450951, exponent_less_127=128, w=2147483652, x=6442450951] [L40] COND TRUE exponent_less_127 == 128 [L42] return x + x; VAL [\old(x)=6442450951, exponent_less_127=128, w=2147483652, x=6442450951] [L74] RET, EXPR round_float(x) VAL [round_float(x)=6442450946, x=6442450951] [L74] float res = round_float(x); [L77] CALL, EXPR isinf_float(res) VAL [\old(x)=6442450946] [L56] __int32_t ix; VAL [\old(x)=6442450946, x=6442450946] [L58] ieee_float_shape_type gf_u; [L59] gf_u.value = (x) [L60] EXPR gf_u.word [L60] (ix) = gf_u.word [L62] ix &= 0x7fffffff [L63] return ((ix) == 0x7f800000L); VAL [\old(x)=6442450946, \result=0, ix=0, x=6442450946] [L77] RET, EXPR isinf_float(res) VAL [isinf_float(res)=0, res=6442450946, x=6442450951] [L77] COND TRUE !isinf_float(res) [L78] __VERIFIER_error() VAL [res=6442450946, x=6442450951] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 37 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 41 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 529 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-08 23:59:11,120 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 23:59:11,121 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 23:59:11,127 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 23:59:11,127 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 23:59:11,128 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 23:59:11,129 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 23:59:11,130 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 23:59:11,131 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 23:59:11,131 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 23:59:11,132 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 23:59:11,132 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 23:59:11,133 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 23:59:11,134 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 23:59:11,134 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 23:59:11,135 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 23:59:11,135 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 23:59:11,136 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 23:59:11,137 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 23:59:11,138 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 23:59:11,139 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 23:59:11,140 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 23:59:11,141 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 23:59:11,141 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 23:59:11,142 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 23:59:11,142 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 23:59:11,143 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 23:59:11,143 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 23:59:11,143 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 23:59:11,144 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 23:59:11,144 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 23:59:11,144 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 23:59:11,144 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 23:59:11,144 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 23:59:11,145 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 23:59:11,145 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 23:59:11,145 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7493c52f-4c72-47af-a679-d1d77f4ffc44/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-08 23:59:11,155 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 23:59:11,155 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 23:59:11,156 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 23:59:11,156 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 23:59:11,156 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 23:59:11,156 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 23:59:11,156 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 23:59:11,157 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 23:59:11,157 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 23:59:11,157 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 23:59:11,158 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 23:59:11,158 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 23:59:11,158 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 23:59:11,158 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 23:59:11,158 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 23:59:11,158 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 23:59:11,158 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 23:59:11,159 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-08 23:59:11,159 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-08 23:59:11,159 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 23:59:11,159 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 23:59:11,159 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 23:59:11,159 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 23:59:11,160 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 23:59:11,160 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 23:59:11,160 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 23:59:11,160 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 23:59:11,160 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 23:59:11,160 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 23:59:11,160 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 23:59:11,161 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 23:59:11,161 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-08 23:59:11,161 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 23:59:11,161 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-08 23:59:11,161 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-08 23:59:11,161 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_7493c52f-4c72-47af-a679-d1d77f4ffc44/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55e25fd47a6133e138b684ec17fad2c015ceccf7 [2018-12-08 23:59:11,185 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 23:59:11,195 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 23:59:11,198 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 23:59:11,199 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 23:59:11,199 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 23:59:11,200 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7493c52f-4c72-47af-a679-d1d77f4ffc44/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1032d_true-unreach-call.c [2018-12-08 23:59:11,245 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7493c52f-4c72-47af-a679-d1d77f4ffc44/bin-2019/utaipan/data/1169daf5c/739a1b7e62f247ccbd782ce0ff042bf1/FLAG06adf44fb [2018-12-08 23:59:11,530 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 23:59:11,530 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7493c52f-4c72-47af-a679-d1d77f4ffc44/sv-benchmarks/c/float-newlib/float_req_bl_1032d_true-unreach-call.c [2018-12-08 23:59:11,534 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7493c52f-4c72-47af-a679-d1d77f4ffc44/bin-2019/utaipan/data/1169daf5c/739a1b7e62f247ccbd782ce0ff042bf1/FLAG06adf44fb [2018-12-08 23:59:11,542 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7493c52f-4c72-47af-a679-d1d77f4ffc44/bin-2019/utaipan/data/1169daf5c/739a1b7e62f247ccbd782ce0ff042bf1 [2018-12-08 23:59:11,544 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 23:59:11,544 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 23:59:11,545 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 23:59:11,545 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 23:59:11,547 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 23:59:11,547 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:59:11" (1/1) ... [2018-12-08 23:59:11,549 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b7a218c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:59:11, skipping insertion in model container [2018-12-08 23:59:11,549 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:59:11" (1/1) ... [2018-12-08 23:59:11,555 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 23:59:11,568 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 23:59:11,674 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 23:59:11,677 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 23:59:11,693 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 23:59:11,708 INFO L195 MainTranslator]: Completed translation [2018-12-08 23:59:11,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:59:11 WrapperNode [2018-12-08 23:59:11,708 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 23:59:11,708 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 23:59:11,709 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 23:59:11,709 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 23:59:11,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:59:11" (1/1) ... [2018-12-08 23:59:11,720 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:59:11" (1/1) ... [2018-12-08 23:59:11,724 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 23:59:11,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 23:59:11,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 23:59:11,724 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 23:59:11,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:59:11" (1/1) ... [2018-12-08 23:59:11,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:59:11" (1/1) ... [2018-12-08 23:59:11,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:59:11" (1/1) ... [2018-12-08 23:59:11,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:59:11" (1/1) ... [2018-12-08 23:59:11,739 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:59:11" (1/1) ... [2018-12-08 23:59:11,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:59:11" (1/1) ... [2018-12-08 23:59:11,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:59:11" (1/1) ... [2018-12-08 23:59:11,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 23:59:11,746 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 23:59:11,746 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 23:59:11,746 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 23:59:11,747 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:59:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7493c52f-4c72-47af-a679-d1d77f4ffc44/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 23:59:11,810 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-12-08 23:59:11,810 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-12-08 23:59:11,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 23:59:11,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 23:59:11,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 23:59:11,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-08 23:59:11,810 INFO L130 BoogieDeclarations]: Found specification of procedure round_float [2018-12-08 23:59:11,810 INFO L138 BoogieDeclarations]: Found implementation of procedure round_float [2018-12-08 23:59:11,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 23:59:11,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 23:59:11,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-08 23:59:11,811 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 23:59:11,811 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 23:59:11,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-08 23:59:11,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-08 23:59:11,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 23:59:11,899 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:59:11,945 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:59:11,989 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 23:59:11,989 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-08 23:59:11,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:59:11 BoogieIcfgContainer [2018-12-08 23:59:11,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 23:59:11,990 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 23:59:11,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 23:59:11,993 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 23:59:11,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 11:59:11" (1/3) ... [2018-12-08 23:59:11,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e2bfea0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 11:59:11, skipping insertion in model container [2018-12-08 23:59:11,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:59:11" (2/3) ... [2018-12-08 23:59:11,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e2bfea0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 11:59:11, skipping insertion in model container [2018-12-08 23:59:11,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:59:11" (3/3) ... [2018-12-08 23:59:11,995 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032d_true-unreach-call.c [2018-12-08 23:59:12,001 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 23:59:12,006 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 23:59:12,015 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 23:59:12,033 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 23:59:12,033 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 23:59:12,034 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 23:59:12,034 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 23:59:12,034 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 23:59:12,034 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 23:59:12,034 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 23:59:12,034 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 23:59:12,034 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 23:59:12,044 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2018-12-08 23:59:12,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 23:59:12,047 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:59:12,048 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:59:12,049 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:59:12,052 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:59:12,052 INFO L82 PathProgramCache]: Analyzing trace with hash -1346515495, now seen corresponding path program 1 times [2018-12-08 23:59:12,055 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 23:59:12,055 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7493c52f-4c72-47af-a679-d1d77f4ffc44/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-08 23:59:12,060 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:59:12,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:59:12,110 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:59:12,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:59:12,122 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 23:59:12,129 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:59:12,130 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 23:59:12,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 23:59:12,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 23:59:12,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 23:59:12,140 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2018-12-08 23:59:12,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:59:12,153 INFO L93 Difference]: Finished difference Result 64 states and 87 transitions. [2018-12-08 23:59:12,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 23:59:12,154 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-12-08 23:59:12,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:59:12,162 INFO L225 Difference]: With dead ends: 64 [2018-12-08 23:59:12,162 INFO L226 Difference]: Without dead ends: 32 [2018-12-08 23:59:12,165 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 23:59:12,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-12-08 23:59:12,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-12-08 23:59:12,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-12-08 23:59:12,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2018-12-08 23:59:12,194 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 23 [2018-12-08 23:59:12,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:59:12,195 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2018-12-08 23:59:12,195 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 23:59:12,195 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2018-12-08 23:59:12,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-08 23:59:12,195 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:59:12,195 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:59:12,196 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:59:12,196 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:59:12,196 INFO L82 PathProgramCache]: Analyzing trace with hash 1879157128, now seen corresponding path program 1 times [2018-12-08 23:59:12,196 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 23:59:12,196 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7493c52f-4c72-47af-a679-d1d77f4ffc44/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-08 23:59:12,199 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:59:12,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:59:12,252 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:59:12,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:59:12,881 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 23:59:12,888 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:59:12,888 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-12-08 23:59:12,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-08 23:59:12,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-08 23:59:12,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-12-08 23:59:12,890 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 11 states. [2018-12-08 23:59:13,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:59:13,920 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2018-12-08 23:59:13,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-08 23:59:13,921 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2018-12-08 23:59:13,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:59:13,922 INFO L225 Difference]: With dead ends: 41 [2018-12-08 23:59:13,922 INFO L226 Difference]: Without dead ends: 34 [2018-12-08 23:59:13,923 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-12-08 23:59:13,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-12-08 23:59:13,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2018-12-08 23:59:13,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-12-08 23:59:13,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2018-12-08 23:59:13,928 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 25 [2018-12-08 23:59:13,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:59:13,928 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2018-12-08 23:59:13,928 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-08 23:59:13,928 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2018-12-08 23:59:13,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-08 23:59:13,929 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:59:13,929 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:59:13,929 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:59:13,929 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:59:13,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1585754121, now seen corresponding path program 1 times [2018-12-08 23:59:13,929 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 23:59:13,930 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7493c52f-4c72-47af-a679-d1d77f4ffc44/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-08 23:59:13,932 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:59:13,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:59:13,962 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:59:14,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:59:14,027 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 23:59:14,038 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:59:14,038 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 23:59:14,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 23:59:14,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 23:59:14,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-08 23:59:14,039 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand 7 states. [2018-12-08 23:59:14,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:59:14,280 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2018-12-08 23:59:14,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-08 23:59:14,281 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-12-08 23:59:14,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:59:14,281 INFO L225 Difference]: With dead ends: 34 [2018-12-08 23:59:14,282 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 23:59:14,282 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-12-08 23:59:14,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 23:59:14,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 23:59:14,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 23:59:14,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 23:59:14,282 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2018-12-08 23:59:14,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:59:14,283 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 23:59:14,283 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 23:59:14,283 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 23:59:14,283 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 23:59:14,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-08 23:59:14,330 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 57 61) no Hoare annotation was computed. [2018-12-08 23:59:14,330 INFO L444 ceAbstractionStarter]: At program point L57-2(lines 57 61) the Hoare annotation is: (= |isinf_float_#in~x| isinf_float_~x) [2018-12-08 23:59:14,330 INFO L448 ceAbstractionStarter]: For program point L57-3(lines 57 61) no Hoare annotation was computed. [2018-12-08 23:59:14,330 INFO L451 ceAbstractionStarter]: At program point isinf_floatENTRY(lines 55 64) the Hoare annotation is: true [2018-12-08 23:59:14,330 INFO L448 ceAbstractionStarter]: For program point isinf_floatEXIT(lines 55 64) no Hoare annotation was computed. [2018-12-08 23:59:14,330 INFO L448 ceAbstractionStarter]: For program point isinf_floatFINAL(lines 55 64) no Hoare annotation was computed. [2018-12-08 23:59:14,330 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-08 23:59:14,330 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-08 23:59:14,331 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-08 23:59:14,331 INFO L451 ceAbstractionStarter]: At program point round_floatENTRY(lines 11 52) the Hoare annotation is: true [2018-12-08 23:59:14,331 INFO L448 ceAbstractionStarter]: For program point L27(lines 27 29) no Hoare annotation was computed. [2018-12-08 23:59:14,331 INFO L448 ceAbstractionStarter]: For program point L25(lines 25 38) no Hoare annotation was computed. [2018-12-08 23:59:14,331 INFO L448 ceAbstractionStarter]: For program point L46(lines 46 50) no Hoare annotation was computed. [2018-12-08 23:59:14,331 INFO L448 ceAbstractionStarter]: For program point L46-1(lines 11 52) no Hoare annotation was computed. [2018-12-08 23:59:14,331 INFO L448 ceAbstractionStarter]: For program point L46-2(lines 46 50) no Hoare annotation was computed. [2018-12-08 23:59:14,331 INFO L448 ceAbstractionStarter]: For program point round_floatFINAL(lines 11 52) no Hoare annotation was computed. [2018-12-08 23:59:14,331 INFO L448 ceAbstractionStarter]: For program point L40(lines 40 44) no Hoare annotation was computed. [2018-12-08 23:59:14,331 INFO L448 ceAbstractionStarter]: For program point L32(lines 32 34) no Hoare annotation was computed. [2018-12-08 23:59:14,331 INFO L448 ceAbstractionStarter]: For program point round_floatEXIT(lines 11 52) no Hoare annotation was computed. [2018-12-08 23:59:14,331 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 45) no Hoare annotation was computed. [2018-12-08 23:59:14,331 INFO L448 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-12-08 23:59:14,332 INFO L444 ceAbstractionStarter]: At program point L16-2(lines 16 20) the Hoare annotation is: (= round_float_~x |round_float_#in~x|) [2018-12-08 23:59:14,332 INFO L448 ceAbstractionStarter]: For program point L16-3(lines 16 20) no Hoare annotation was computed. [2018-12-08 23:59:14,332 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-08 23:59:14,332 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-08 23:59:14,332 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-08 23:59:14,332 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-08 23:59:14,332 INFO L448 ceAbstractionStarter]: For program point L78(line 78) no Hoare annotation was computed. [2018-12-08 23:59:14,332 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 65 83) the Hoare annotation is: true [2018-12-08 23:59:14,332 INFO L444 ceAbstractionStarter]: At program point L77(line 77) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (and (= (fp.add roundNearestTiesToEven .cse0 .cse0) main_~res~0) (= main_~x~0 .cse0))) [2018-12-08 23:59:14,332 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 65 83) no Hoare annotation was computed. [2018-12-08 23:59:14,333 INFO L448 ceAbstractionStarter]: For program point L77-1(lines 77 80) no Hoare annotation was computed. [2018-12-08 23:59:14,333 INFO L444 ceAbstractionStarter]: At program point L74(line 74) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) [2018-12-08 23:59:14,333 INFO L448 ceAbstractionStarter]: For program point L74-1(line 74) no Hoare annotation was computed. [2018-12-08 23:59:14,333 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 65 83) no Hoare annotation was computed. [2018-12-08 23:59:14,333 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 78) no Hoare annotation was computed. [2018-12-08 23:59:14,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 11:59:14 BoogieIcfgContainer [2018-12-08 23:59:14,340 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 23:59:14,341 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 23:59:14,341 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 23:59:14,341 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 23:59:14,341 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:59:11" (3/4) ... [2018-12-08 23:59:14,343 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 23:59:14,347 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-12-08 23:59:14,347 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-08 23:59:14,348 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure round_float [2018-12-08 23:59:14,348 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-08 23:59:14,351 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2018-12-08 23:59:14,351 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-12-08 23:59:14,351 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-08 23:59:14,367 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-12-08 23:59:14,367 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-08 23:59:14,378 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7493c52f-4c72-47af-a679-d1d77f4ffc44/bin-2019/utaipan/witness.graphml [2018-12-08 23:59:14,379 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 23:59:14,379 INFO L168 Benchmark]: Toolchain (without parser) took 2835.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 943.3 MB in the beginning and 962.7 MB in the end (delta: -19.4 MB). Peak memory consumption was 115.4 MB. Max. memory is 11.5 GB. [2018-12-08 23:59:14,380 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:59:14,380 INFO L168 Benchmark]: CACSL2BoogieTranslator took 163.18 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 23:59:14,380 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.72 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-08 23:59:14,381 INFO L168 Benchmark]: Boogie Preprocessor took 21.55 ms. Allocated memory is still 1.0 GB. Free memory is still 927.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:59:14,381 INFO L168 Benchmark]: RCFGBuilder took 243.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 927.2 MB in the beginning and 1.1 GB in the end (delta: -169.7 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-12-08 23:59:14,381 INFO L168 Benchmark]: TraceAbstraction took 2349.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 969.6 MB in the end (delta: 127.3 MB). Peak memory consumption was 127.3 MB. Max. memory is 11.5 GB. [2018-12-08 23:59:14,381 INFO L168 Benchmark]: Witness Printer took 38.07 ms. Allocated memory is still 1.2 GB. Free memory was 969.6 MB in the beginning and 962.7 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-08 23:59:14,383 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 163.18 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.72 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.55 ms. Allocated memory is still 1.0 GB. Free memory is still 927.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 243.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 927.2 MB in the beginning and 1.1 GB in the end (delta: -169.7 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2349.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 969.6 MB in the end (delta: 127.3 MB). Peak memory consumption was 127.3 MB. Max. memory is 11.5 GB. * Witness Printer took 38.07 ms. Allocated memory is still 1.2 GB. Free memory was 969.6 MB in the beginning and 962.7 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 78]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 36 locations, 1 error locations. SAFE Result, 2.3s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 1.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 80 SDtfs, 53 SDslu, 256 SDs, 0 SdLazy, 137 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 14 PreInvPairs, 17 NumberOfFragments, 49 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 70 ConstructedInterpolants, 6 QuantifiedInterpolants, 8260 SizeOfPredicates, 9 NumberOfNonLiveVariables, 195 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...